A flow rate assembly can include a fluid flow interface portion having a front facing wall and a back facing wall. The flow interface portion can include an inlet passage within the fluid flow interface portion, an outlet passage within the fluid flow interface portion, at least one inlet aperture extending through the front facing wall of the fluid flow interface portion into the inlet passage, and at least one outlet aperture extending through the back facing wall of the fluid flow interface portion into the outlet passage. In some cases, the fluid flow interface portion includes a plug forming at least a portion of the inlet passage.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The flow rate assembly of claim 1, further comprising a moving indicator configured to move in response to fluid flow into the plurality of inlet apertures of the fluid flow interface portion.
3. The flow rate assembly of claim 1, further comprising a float positioned within the fluid passage of the sensor body.
4. The flow rate assembly of claim 3, wherein the float is configured to move along the fluid passage in response to fluid flow through at least one inlet aperture of the fluid flow interface portion.
5. The flow rate assembly of claim 3, wherein a position of the float between the upstream and downstream ends of the inlet passage indicates a flow rate of fluid into the plurality of inlet apertures of the fluid flow interface portion.
6. The flow rate assembly of claim 2, comprising a signal generator connected to the sensor body and configured detect and output signals in response to positioning the moving indicator into or out from a predetermined range between the upstream and downstream ends of the inlet passage.
8. The flow rate assembly of claim 7, wherein the flow rate assembly is configured to measure a flow rate of fluid through a pipe within 10% accuracy of the reading in a flow rate range between 2 feet per second and 10 feet per second.
9. The flow rate assembly of claim 7, wherein the flow rate assembly is configured to measure flow rate of fluid through a pipe within 5% accuracy of the reading in a flow rate range between 2 feet per second and 10 feet per second.
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March 15, 2021
August 2, 2022
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